I'm triing VV3 on capture, I can handle my JVC DVX9 and I see the video on the capture screen but when I record I see the video on the screen and when I stop there is no file created (no file, no clip)
I used to have this same problem and what fixed it was in the preferences of the VV3 capture program I unchecked the box next to 'Minimum clip lenght (seconds)' and capturing worked perfect after that. Now I just have problems with low hard disk space :)